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Find cheap flights from Washington to Australia from $702

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington to Australia departing on 29/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
Thu 23/5
Thu 30/5

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In the last 7 days, travellers have searched 44,632,927 times on KAYAK, and here's why:

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Good to know

Low season

June

High season

December

Cheapest flight

$702
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly (20% more expensive on average)
Flight from Seattle to Sydney

FAQs for booking flights from Washington to Australia

  • How does KAYAK find such low prices on flights from Washington to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Australia from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Australia with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Australia from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Washington to Australia

Recent return flight deals

29/5Wed
2 stops
35h 10mSEA-SYD
10/6Mon
1 stop
22h 25mSYD-SEA
$1,480
29/5Wed
2 stops
35h 10mSEA-SYD
10/6Mon
1 stop
22h 25mSYD-SEA
$1,483
3/6Mon
1 stopHawaiian Airlines
18h 10mSEA-SYD
20/6Thu
1 stopHawaiian Airlines
17h 05mSYD-SEA
$1,616
15/9Sun
1 stopSingapore Airlines
37h 25mSEA-PER
7/10Mon
1 stopSingapore Airlines
41h 20mPER-SEA
$1,644
7/5Tue
2 stopsHawaiian Airlines
40h 25mSEA-SYD
12/5Sun
1 stopHawaiian Airlines
17h 40mSYD-SEA
$1,736
8/9Sun
1 stopSingapore Airlines
35h 15mSEA-PER
16/9Mon
1 stopSingapore Airlines
22h 35mPER-SEA
$1,894
29/5Wed
2 stopsAir New Zealand
24h 35mSEA-SYD
10/6Mon
2 stopsAir New Zealand
33h 01mSYD-SEA
$1,987
22/5Wed
1 stopDelta
25h 07mGEG-SYD
8/7Mon
1 stopDelta
19h 35mSYD-GEG
$1,995
22/5Wed
2 stopsDelta
27h 30mGEG-SYD
8/7Mon
2 stopsDelta
30h 34mSYD-GEG
$2,003
4/8Sun
2 stopsAir New Zealand
35h 30mSEA-MEL
17/8Sat
2 stopsAir New Zealand
47h 37mMEL-SEA
$2,091

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Recent one-way flight deals

29/5Wed
2 stops
35h 10mSEA-SYD
$702
22/8Thu
1 stop
36h 55mSEA-SYD
$708
15/5Wed
1 stopHawaiian Airlines
19h 05mSEA-SYD
$973
15/10Tue
2 stopsHawaiian Airlines
63h 30mSEA-SYD
$1,001
24/9Tue
2 stopsFiji Airways
37h 30mSEA-SYD
$1,309
7/10Mon
1 stopChina Airlines
40h 35mSEA-SYD
$1,425
23/9Mon
1 stopChina Airlines
40h 35mSEA-SYD
$1,447
15/10Tue
1 stopANA
33h 35mSEA-SYD
$1,497
26/9Thu
3 stopsFiji Airways
24h 34mSEA-SYD
$1,523
22/9Sun
2 stopsANA
27h 15mSEA-SYD
$1,539

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Search by price

Last minute flights from Washington to Australia

Last minute flight, train and bus deals

25/4Thu
multi-stop
37h 10mSEA-MEL
5/5Sun
multi-stop
23h 35mMEL-SEA
$2,214
25/4Thu
multi-stop
37h 10mSEA-MEL
1/5Wed
multi-stop
23h 35mMEL-SEA
$2,225
27/4Sat
multi-stopHawaiian Airlines
19h 10mSEA-SYD
4/5Sat
multi-stopHawaiian Airlines
17h 40mSYD-SEA
$2,599
24/4Wed
multi-stopQatar Airways
38h 00mSEA-MEL
4/5Sat
multi-stopQatar Airways
46h 15mMEL-SEA
$2,619
26/4Fri
multi-stopHawaiian Airlines
40h 25mSEA-SYD
3/5Fri
multi-stopHawaiian Airlines
17h 40mSYD-SEA
$2,779
25/4Thu
multi-stopQatar Airways
31h 15mSEA-MEL
4/5Sat
multi-stopQatar Airways
35h 45mMEL-SEA
$2,785
25/4Thu
multi-stopEVA Air
25h 30mSEA-BNE
4/5Sat
multi-stopEVA Air
38h 15mBNE-SEA
$3,207
25/4Thu
multi-stopEVA Air
25h 30mSEA-BNE
2/5Thu
multi-stopEVA Air
38h 15mBNE-SEA
$3,360
26/4Fri
multi-stopUnited Airlines
24h 50mSEA-SYD
3/5Fri
multi-stopUnited Airlines
21h 13mSYD-SEA
$3,402
24/4Wed
multi-stopUnited Airlines
24h 20mSEA-BNE
28/4Sun
multi-stopUnited Airlines
25h 11mBNE-SEA
$4,159

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Flights to Australia

Return flight deals:

Australia - Washington

Cabin classes: